It shall be unlawful for any person to throw, drain, run, or otherwise discharge into any of the waters of this state, or to cause, permit or suffer to be thrown, run, drained, allowed to seep or otherwise discharged into such waters any organic or inorganic matter that shall cause or tend to cause pollution of such waters according to the determination of the department, as provided for in this chapter.
RCW 90.48.080
Discharge of polluting matter in waters prohibited.
Known as the Coastal Waters Protection Act
The act spans §§ 90–90 (82 sections).
Applied in 17 court decisions — leading case Tiegs v. Watts (1998)
Most recently applied in 387 F. Supp. 3d 1141 - City of Seattle v. Monsanto Co. (May 2019)
1987 c 109 s 126; 1967 c 13 s 8; 1945 c 216 s 14; Rem
How often courts cite this section
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.